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Two filling pipes can fill a cistern in 10 and 12 minutes, respectively, and they can together fill it in 15 minutes. The waste pipe can empty the full cistern in

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Important Questions on Pipes and Cistern

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A tank has a leak which would empty it in 6 hours. A tap is turned on which admits 8 L a minutes into tank, and it is now-emptied in 10 hours. The capacity of tank in litres will be
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Two pipes A and B can fill a tank in 20 minute and 25 minutes, respectively. If both the pipes are opened simultaneously, then after how much time should Abe closed so that the tank is full in 20 minutes?
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Two pipes A and B can fill a tank in 24 minutes and 30 minutes, respectively, but a third pipe C can empty it in 12 minutes. The first two pipes are kept open for 10 minutes at the start and then pipe C is also opened. The cistern will be emptied is
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Two pipes A and B can fill a tank in 15 and 12 hours respectively. Pipe B alone is kept open for 34of the time and both pipes are kept open for the remaining time. In how many hours will the tank will be full?
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Three pipes A, B and C can fill a cistern in 7 hours. After working at it together for 2 hours, C is closed. Now A and B require 10 hours more to fill it. Then C alone will empty it in
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Two pipes X and Y can fill a cistern in 24 minutes and 32 minutes, respectively. If both the pipes are opened together, then after how much time (in minutes) should Y be closed so that the tank is full in 18 minutes?
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Having the same capacity, 10 taps fill up a water tank in 24 minutes. How many taps of half the capacity are required to fill up the same water tank in 15 minutes?
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Three pipes P, Q and R can separately fill a cistern in 4, 8 and 12 hours, respectively. Another pipe Scan empty the completely filled cistern in 10 hours. Which of the following arrangements will fill the empty cistern in less time than others?